TY - JOUR
T1 - Polylactide/graphene oxide nanosheets/clove essential oil composite films for potential food packaging applications
AU - Arfat, Yasir Ali
AU - Ahmed, Jasim
AU - Ejaz, Mohammed
AU - Mullah, Mehrajfatimah
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2018/2
Y1 - 2018/2
N2 - Antimicrobial nanopackaging films were developed by incorporating clove essential oil (CLO) (15–30% w/w) and graphene oxide (GO) nanosheets (1% w/w) into polylactide (PLA), suitable for use as food packaging, via solution casting. Addition of CLO into PLA matrix improved the flexibility of the composite films by lowering tensile stress, complex viscosity (η*), and glass transition temperature (Tg). GO improved the Tg, η* and lowered the oxygen permeability of the plasticized PLA matrix. Optical and anti-UV properties of the film were influenced by both GO and CLO incorporation. FTIR spectra exhibited a change in the molecular organization of the plasticized PLA film after incorporation with CLO. Microstructural studies revealed that the reinforcement of GO prevented porosity of plasticized PLA/CLO film surface. The developed composite film showed excellent antibacterial activity against Staphylococcus aureus and Escherichia coli and therefore, has a potential to be used as active packaging material for food safety and preservation.
AB - Antimicrobial nanopackaging films were developed by incorporating clove essential oil (CLO) (15–30% w/w) and graphene oxide (GO) nanosheets (1% w/w) into polylactide (PLA), suitable for use as food packaging, via solution casting. Addition of CLO into PLA matrix improved the flexibility of the composite films by lowering tensile stress, complex viscosity (η*), and glass transition temperature (Tg). GO improved the Tg, η* and lowered the oxygen permeability of the plasticized PLA matrix. Optical and anti-UV properties of the film were influenced by both GO and CLO incorporation. FTIR spectra exhibited a change in the molecular organization of the plasticized PLA film after incorporation with CLO. Microstructural studies revealed that the reinforcement of GO prevented porosity of plasticized PLA/CLO film surface. The developed composite film showed excellent antibacterial activity against Staphylococcus aureus and Escherichia coli and therefore, has a potential to be used as active packaging material for food safety and preservation.
KW - Clove oil
KW - Glass transition temperature
KW - Graphene oxide nanosheets
KW - Nanocomposite
KW - Polylactide
KW - Rheology
UR - http://www.scopus.com/inward/record.url?scp=85028860277&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2017.08.156
DO - 10.1016/j.ijbiomac.2017.08.156
M3 - Article
C2 - 28863895
AN - SCOPUS:85028860277
SN - 0141-8130
VL - 107
SP - 194
EP - 203
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
IS - PartA
ER -